I recently switched to using a mechanical pencil (recently being since last September) and these eraser shavings that seem to be everywhere are driving me crazy!
I've had a look at things like this and this, but it's hugely inefficient to keep using these to clean up the shavings every time I erase (which is quiet frequently, I'm a little picky with neatness of notes). It has also been noted that the second link actually leaves a mark when rolled over white paper which isn't pleasant at all.